Searched for: department:"Hydraulic"
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Van Laerhoven, C.R. (author)
Since their development in the 1970s, mesoscale atmospheric models have been used for a variety of meteorological applications. Over the years, the models have evolved and nowadays, state-of-the-art atmospheric models are capable of operating on spatial resolutions in the order of kilometres. In the hydraulic engineering community, atmospheric...
master thesis 2016
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Döbken, J.W. (author)
Aquatic vegetation, found in coastal waters and inter tidal areas, has important features for hydraulic engineering solutions, including sedimentation and stabilization of the bed. The increasing demand to predict wave hydrodynamics with aquatic vegetation asks for insight in the mechanisms and improved model methods. Striving to a more...
master thesis 2015
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Hollander, W. (author)
A filter can be applied to protect a bed against scour. Normally, these filters are geometrically closed, to prevent winnowing of the base material through the filter. However, geometrically closed filters are expensive and difficult to realize in the field. Geometrically open filters can serve as an alternative. Within an open filter, the pores...
master thesis 2015
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Van den Heuvel, H.P.A. (author)
Pipeline covers on the seabed are called near-bed structures which are generally made of rip rap. The crest height of a near-bed structure is such that waves do not break over it. Near-bed structures are used to protect pipelines against fishing equipment, ship anchors, dropped objects and preventing destabilizing of the pipeline. There are two...
master thesis 2013
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Huibregtse, W.P. (author)
This thesis focusses on the north-eastward shifting beach at Brouwersdam, which poses a problem for users and stakeholders of the beach. This trend is likely to continue in the foreseeable future and could result in a beach that can no longer fulfil its current functions, like recreation and tourism. Analysis of bathymetric data from the last...
master thesis 2013
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Hofste, G.M. (author)
The Dutch department of Public Works had a problem regarding wave impacts on a beam in the Stevin outlet sluices, located in the Afsluitdijk. Wave impacts on this beam could also cause a peak pressure on the barrier gate, just behind the beam. The numerical program ComFLOW and physical scale experiments were used to predict the wave impacts for...
master thesis 2012
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Bijl, E. (author)
The erosion problem at the Senegambia area (The Gambia) is the subject of this thesis. The Senegambia area is the largest Tourism developed area which contributes significantly to the economy of The Gambia. In November 2003 Royal Haskoning has constructed a beach nourishment of 1,000,000 m3 as an erosion buffer with a lifetime of 10 to 15 years....
master thesis 2011
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Van der Ham, P.J. (author)
Part I: On the time scales of wave processes. To systematically improve the SWAN model a study on the wave physics in a tidal inlet was carried out. The third-generation SWAN model was used to compute the wave processes in a tidal inlet for storm conditions. The computed wave processes are propagation (shoaling, refraction and frequency shifting...
master thesis 2009
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Treffers, R.B. (author)
Recent study has shown that 3D computations of the morphological development of a coast shows irregularities compared with the 2DH (depth-averaged) computations. Therefore a validation of the surf zone currents computed using the 2DH (depth-averaged) and 3D approach in Delft3D is made. The 2DH and 3D approach are compared using an idealized case...
master thesis 2009
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Halter, W. (author)
Filterconstructies hebben als doel erosie te voorkomen in bepaalde delen van waterbouwkundige kunstwerken. Ze zijn opgebouwd uit een basislaag en een of meer filterlagen. Er zijn verschillende soorten filterconstructies. Ze worden over het algemeen zo gemaakt dat er geen erosie zal optreden van basismateriaal. Het is echter efficienter om een...
master thesis 1999
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Van der Wal, R.J. (author)
Especially during storms the coast-profile can change dramatically. During storms large waves cause high oscillatory water velocities near the bottom and the bed becomes plane and sheet flow becomes the dominant sediment transport mode. Because field measurements are difficult to perform in-situ, laboratory experiments concerning these processes...
master thesis 1996
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Van Gruijthuijsen, M.F.J. (author)
In this thesis, the wave prediction model SWAN is validated on field data obtained from wave growth experiments that were done in Lake George, a shallow lake in Australia. SWAN, which is an acronym for Simulation of WAves in Nearshore areas, is a numerical model, developed at the University of Technology in Delft, to obtain estimates of wave...
master thesis 1996
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Oschatz, E. (author)
HISWA is een tweedimensionaal golvenmodel, dat de gebruiker in staat stelt diverse golfgegevens, zoals significante golfhoogte, periode en golfrichting, voor een bepaald modelgebied te bepalen. Op dit moment biedt HISWA al faciliteiten om pre- en postprocessing uit te voeren (zij het in beperkte mate). Onder de gebruikers echter is er behoefte...
master thesis 1996
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Bosboom, J. (author)
In this thesis, the modelling of the horizontal velocity field under waves using Boussinesqtype models is studied. Special attention is paid to the prediction of bottom velocities in view of sediment-transport formulations. Boussinesq-type models describe the propagation of weakly non-linear shallow-water waves. The depth-dependence of the...
master thesis 1995
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Van Agthoven, A.M. (author)
Detailed studies have been carried out for fetch and duration limited wave growth and fully developed sea state, but much less is known about changing wind conditions. The subject of this study is the response of waves to a change in wind speed. The main point of interest is the rate of response at the different frequencies. Two third generation...
master thesis 1994
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Havinga, F.J. (author)
The present report contains a description of an experimental program, as a follow up of experiments by v.d. Kaaij and Nieuwjaar in 1986, and Nap and Van Kampen in 1987. As in the second study, in the present study a particle sand diameter of D50 = 100 mu was used, so that the experiments of Nap and Van Kampen will be referred as "the earlier 100...
master thesis 1992
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Kraneveld, M.R. (author)
In conventional practice extreme design conditions for offshore structures are obtained very conservatively by extrapolating 3-hourly statistics of wind, wave and current data to a (say) 100 year return level, assuming that the 100-year extremes occur simultaneously and act in the same direction. This study involves an alternative approach...
master thesis 1991
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Heijermans, B.H. (author)
This is a study of the statistics of the ocean surface. The extreme surface elevation arising from waves, tides and storm surge is calculated by a novel approach that appears to eliminate many of the shortcomings of the convential practice. The proposed method works with the statistics of storms rather than three hour periods. A storm may be...
master thesis 1991
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Shafiee-Far, M. (author)
BELUGA is a mathematical model which has been developed by Booij, Holthuijsen and Tolman in Delft University of Thechnology, to compute wave penetration into a harbour taking diffraction and reflection into consideration. The aim of the model is to provide an efficient numerical method for calculation of a wave field in a relatively large...
master thesis 1991
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Tilmans, W. (author)
Sediment transport by waves in the direction of the waves in relatively shallow water. Het onderzoek naar zandtransport in meest algemene Zin kent al een ruime historie. In eerste instantie lag het accent hierbij op bestudering van het zandtransportverschijnsel onder invloed van een permanente stroom, zoals in rivieren en kanalen. Daarbij is in...
master thesis 1989
Searched for: department:"Hydraulic"
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